@misc{indiciaee8514aa95c9b,
  title = {Chicago folio, Riverside, Chicago, Desplaines, and Calumet quadrangles. Illinois-Indiana},
  author = {William C. Alden},
  year = {1902},
  doi = {10.3133/gf81},
  url = {https://pubs.usgs.gov/publication/gf81},
  note = {Source identifier: gf81}
}